Module Notice
This is a negotiation trigger, not a voltage converter. Output depends entirely on your power supply. If the supply lacks a voltage level, that level cannot be requested.
Key Specs
Input: USB‑C male
Output: 2‑pin terminal
Protocols: PD3.0/2.0, QC, FCP, AFC
Requestable voltages: 5/9/12/15/20V (supply‑dependent)
Max output: 20V/5A (100W)
Max input voltage: 40V (module withstand >30V)
Default polling interval: 0.5s, adjustable 0.5–15.5s (step 0.5s)
Test modes: F1 (poll to highest → hold 5V), F2 (poll to highest → hold highest), F1+F2 (infinite loop)
Key lock: Enable by shorting S1; unlock by holding button during power‑up
PD‑only mode: Short "PD ONLY" pads
DM/DP shorting: Pads available, but not recommended unless absolutely needed
Operation
Connect USB‑C PD/QC supply to input.
Short‑press button to cycle voltages (5→9→12→15→20V).
Steady LED = success, blinking = unsupported.
Selected voltage is saved and restored on next power‑on.
Test Modes (set by shorting pads)
F1: On power‑up, polls to highest supported voltage, then outputs 5V; LEDs show supported levels (steady) vs. unsupported (blink).
F2: Same poll, but output stays at the highest supported voltage.
F1+F2: Infinite loop cycling low → high repeatedly.
Adjusting Polling Interval
Hold button during power‑up until first LED blinks; continue holding until all blink, then release to enter setting mode. Each button press adds 0.5s (LEDs show count in binary, max 30 presses = 15.5s). Auto‑exit & save after 3s of inactivity.
Key Lock (S1 shorted)
Switching requires unlocking: hold button while powering on – unlocked for that session; lock restores after reboot.
PD‑only Mode (short "PD ONLY")
Uses only PD negotiation; disables QC, FCP, AFC.
Important Warnings
⚠️ Not a power converter – for load testing or non‑PD DIY devices only.
⚠️ DM/DP shorting passes signals directly to USB output and may disrupt handshake – avoid unless you know the purpose.
⚠️ Max rating: 20V/5A (100W) – actual output limited by your supply. Input ≤40V.
⚠️ Your power supply must support PD/QC/FCP/AFC and the target voltage; if it only outputs 5V, no higher voltage can be requested.
⚠️ Do not modify the circuit – voids support/warranty.
⚠️ ESD protection: handle by edges, avoid touching chips.
⚠️ Test with no load first; confirm voltage before connecting load.
⚠️ For QC, check charger markings – if 12V is not labelled, 12V cannot be requested regardless of module capability.